This study focuses on utilizing stainless steel metal filaments with Fused Filament Fabrication (FFF), one of the additive manufacturing methods. While FFF is typically used for prints made of plastic materials, the application of metal filaments with this method has emerged as a new application. The device costs of metal 3D printing methods are generally quite high, and typically, industrial-level devices operating with these methods require significant investments. Obtaining metal prints using FFF on a desktop 3D printer attracts attention due to the cost-effectiveness of this 3D printer compared to other metal-capable additive manufacturing methods such as selective laser sintering (SLS) or electron beam melting (EBM). Following the printing process with metal filaments, the parts are carried out debinding and sintering processes. The debinding process is generally a critical stage that can significantly impact the mechanical properties of the part, hence requiring careful control and optimization. In this study, samples were produced from stainless steel material using a desktop 3D printer. These samples were subjected to different thermal debinding temperatures, and subsequently, the porosity rates in the printed parts were calculated. Thus, the relationship between debinding temperature and porosity is examined to determine the optimum debinding temperature.